Finding the Fourth Proportional to 153,748.14, 212,176.71 and 90,088.62
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Solution
The fourth proportional to 153,748.14, 212,176.71 and 90,088.62 is: 124,324.80
Step by Step Solution
- Step 1: Write the proportion equation
153,748.14 : 212,176.71 = 90,088.62 : x - Step 2: Convert to fraction form
153,748.14/212,176.71 = 90,088.62/x - Step 3: Cross multiply
153,748.14x = 212,176.71 × 90,088.62 - Step 4: Simplify right side
153,748.14x = 19,114,707,000.04 - Step 5: Solve for x
x = 19,114,707,000.04/153,748.14 - Step 6: Final answer
x = 124,324.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.